Chemistry Which of the following pairs of materials serves as electrodes in chargeable batteries commonly used in devices such as torch lights, electric shavers, etc. ? Nickel and cadmium Lead peroxide and lead Zinc and carbon Iron and cadmium Nickel and cadmium Lead peroxide and lead Zinc and carbon Iron and cadmium ANSWER DOWNLOAD EXAMIANS APP
Chemistry Litmus is obtained from A bacterium A fungus An alga Lichen A bacterium A fungus An alga Lichen ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following elements is obtained from sea weeds ? Iodine Argon Vanadium Sulphur Iodine Argon Vanadium Sulphur ANSWER DOWNLOAD EXAMIANS APP
Chemistry The presence of ozone in the stratosphere is responsible for Increasing the average global temperature in recent years Supplying oxygen for people travelling in jets Higher rate of photosynthesis Checking the penetration of ultra-violet rays to the earth Increasing the average global temperature in recent years Supplying oxygen for people travelling in jets Higher rate of photosynthesis Checking the penetration of ultra-violet rays to the earth ANSWER DOWNLOAD EXAMIANS APP
Chemistry The chemical bahaviour of an atom depends upon The number of nucleons in the nucleus The number of electrons orbiting around the nucleus The number of protons in its nucleus The number of neutrons in the nucleus The number of nucleons in the nucleus The number of electrons orbiting around the nucleus The number of protons in its nucleus The number of neutrons in the nucleus ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following is used to make light weight, but strong plastic ? Nylon Polyvinyl Chloride Methyl Methacrylate Polythene Nylon Polyvinyl Chloride Methyl Methacrylate Polythene ANSWER DOWNLOAD EXAMIANS APP
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